Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB8YO callsign genealogy
Currently held by STEMPEK, LOUIS F
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by AB8YO's current licensee, walking backwards.
- STEMPEK, LOUIS FMIgranted 2006-04-20cancelled 2007-05-01
Successor callsigns
Callsigns held now by people who previously held AB8YO.
- STEMPEK, LOUIS FMIgranted 2025-01-01